ANSWER:
y = - x
An equation which describes the graph shown is:
y = - x
Explanation:
The equation of this line will be in the following form:
y = mx
We will substitute the values given from the problem into the formula to obtain the equation of the line.
y = mx
m = gradient or slope = rise / run = - 5 / 5 = - 1
THEREFORE:
y = ( - 1 )x
y = - x